迟力峰教授、黄丽珍副教授及其合作者在Adv. Mater.上发表论文

发布时间:2021-05-12访问量:720设置

题目:

Porous Semiconducting Polymers Enable HighPerformance Electrochemical Transistors

作者:

Lizhen Huang,1,2 Zhi Wang,2,3 Jianhua Chen,2 Binghao Wang,2 Yao Chen,2 Wei Huang,2,* Lifeng Chi,1,* Tobin J. Marks,2,* Antonio Facchetti2, 4, *

单位:

1 Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China

2 Department of Chemistry and the Materials Research Center, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA

3 Research Center for Engineering Technology of Polymeric Composites of Shanxi Province School of Materials Science and Engineering North University of China, Taiyuan 030051, P. R. China

4Flexterra Inc. 8025 Lamon Avenue, Skokie, IL 60077, USA

摘要:

Organic polymer electrochemical transistors (OECTs) are of great interest for flexible electronics and bioelectronics applications owing to their high transconductance and low operating voltage. However, efficient OECT operation must delicately balance the seemingly incompatible materials optimizations of redox chemistry, active layer electronic transport, and ion penetration/transport. The latter characteristics are particularly challenging since most high-mobility semiconducting polymers are hydrophobic, which hinders efficient ion penetration, hence limiting OECT performance. Here, the properties and OECT response of a series of dense and porous semi-conducting polymer films are compared, the latter fabricated via a facile breath figure approach. This methodology enables fast ion doping, high transconductance (up to 364 S cm−1), and a low subthreshold swing for the hydrophobic polymers DPPDTT and P3HT, rivalling or exceeding the metrics of the relatively hydrophilic polymer, Pg2T-T. Furthermore, the porous morphology also enhances the transconductance of hydrophilic polymers, offering a general strategy for fabricating high-performance electrochemical transistors.

影响因子:

27.398

分区情况:

一区

链接:

https://onlinelibrary.wiley.com/doi/10.1002/adma.202007041


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